Analysis of interatomic Contacts of Structural Units in PDB entry:
7CYN

Contacts of Structural Units (CSU) are derived with the CSU software (Sobolev V., Sorokine A., Prilusky J., Abola E.E. and Edelman M. (1999) Automated analysis of interatomic contacts in proteins. Bioinformatics, 15, 327-332).
This page provides analyses of contacts formed by:

chains
helices
sheets
residues

For analysis of ligand-protein contacts, use:

LPC software

3D structure can be seen in additional window with STING software for 7CYN entry

There are 4 chains in PDB entry 7CYN (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	PRO 31	PHE 864
B	PRO 31	PHE 864
C	GLU 45	PRO 527
D	GLU 45	PRO 527

There are 72 helices in PDB entry 7CYN. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	AA1	A	168	172	Right-handed 310
Helix 2	AA2	A	273	277	Right-handed 310
Helix 3	AA3	A	306	311	Right-handed 310
Helix 4	AA4	A	334	339	Right-handed 310
Helix 5	AA5	A	363	369	Right-handed 310
Helix 6	AA6	A	386	395	Right-handed 310
Helix 7	AA7	A	414	419	Right-handed 310
Helix 8	AA8	A	576	582	Right-handed alpha
Helix 9	AA9	A	669	673	Right-handed 310
Helix 10	AB1	A	692	698	Right-handed 310
Helix 11	AB2	A	717	722	Right-handed alpha
Helix 12	AB3	A	768	773	Right-handed alpha
Helix 13	AB4	A	788	790	Right-handed 310
Helix 14	AB5	A	791	798	Right-handed alpha
Helix 15	AB6	A	817	821	Right-handed 310
Helix 16	AB7	A	838	864	Right-handed alpha
Helix 17	AB8	B	168	172	Right-handed 310
Helix 18	AB9	B	273	277	Right-handed 310
Helix 19	AC1	B	306	311	Right-handed 310
Helix 20	AC2	B	334	339	Right-handed 310
Helix 21	AC3	B	363	369	Right-handed 310
Helix 22	AC4	B	386	395	Right-handed 310
Helix 23	AC5	B	414	419	Right-handed 310
Helix 24	AC6	B	576	582	Right-handed alpha
Helix 25	AC7	B	669	673	Right-handed 310
Helix 26	AC8	B	692	698	Right-handed 310
Helix 27	AC9	B	717	722	Right-handed alpha
Helix 28	AD1	B	768	773	Right-handed alpha
Helix 29	AD2	B	788	790	Right-handed 310
Helix 30	AD3	B	791	798	Right-handed alpha
Helix 31	AD4	B	817	821	Right-handed 310
Helix 32	AD5	B	838	864	Right-handed alpha
Helix 33	AD6	C	46	89	Right-handed alpha
Helix 34	AD7	C	91	99	Right-handed alpha
Helix 35	AD8	C	103	117	Right-handed alpha
Helix 36	AD9	C	118	134	Right-handed alpha
Helix 37	AE1	C	136	152	Right-handed alpha
Helix 38	AE2	C	157	199	Right-handed alpha
Helix 39	AE3	C	213	235	Right-handed alpha
Helix 40	AE4	C	236	242	Right-handed alpha
Helix 41	AE5	C	249	254	Right-handed alpha
Helix 42	AE6	C	281	306	Right-handed alpha
Helix 43	AE7	C	312	320	Right-handed alpha
Helix 44	AE8	C	329	334	Right-handed alpha
Helix 45	AE9	C	335	337	Right-handed 310
Helix 46	AF1	C	339	359	Right-handed alpha
Helix 47	AF2	C	365	370	Right-handed alpha
Helix 48	AF3	C	374	396	Right-handed alpha
Helix 49	AF4	C	403	422	Right-handed alpha
Helix 50	AF5	C	432	461	Right-handed alpha
Helix 51	AF6	C	463	488	Right-handed alpha
Helix 52	AF7	C	494	518	Right-handed alpha
Helix 53	AF8	D	46	89	Right-handed alpha
Helix 54	AF9	D	91	99	Right-handed alpha
Helix 55	AG1	D	103	117	Right-handed alpha
Helix 56	AG2	D	118	134	Right-handed alpha
Helix 57	AG3	D	136	152	Right-handed alpha
Helix 58	AG4	D	157	199	Right-handed alpha
Helix 59	AG5	D	213	235	Right-handed alpha
Helix 60	AG6	D	236	242	Right-handed alpha
Helix 61	AG7	D	249	254	Right-handed alpha
Helix 62	AG8	D	281	306	Right-handed alpha
Helix 63	AG9	D	312	320	Right-handed alpha
Helix 64	AH1	D	329	334	Right-handed alpha
Helix 65	AH2	D	335	337	Right-handed 310
Helix 66	AH3	D	339	359	Right-handed alpha
Helix 67	AH4	D	365	370	Right-handed alpha
Helix 68	AH5	D	374	396	Right-handed alpha
Helix 69	AH6	D	403	422	Right-handed alpha
Helix 70	AH7	D	432	461	Right-handed alpha
Helix 71	AH8	D	463	488	Right-handed alpha
Helix 72	AH9	D	494	518	Right-handed alpha

There are 10 sheets in PDB entry 7CYN. Click on sheet of interest to get list of strands forming it: AA1, AA2, AA3, AA4, AA5, AA6, AA7, AA8, AA9, AB1,

There are 24 strands in AA1 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	37	41	first strand
Strand 2	A	46	50	anti-parallel
Strand 3	A	69	71	parallel
Strand 4	A	93	95	parallel
Strand 5	A	131	133	parallel
Strand 6	A	152	154	parallel
Strand 7	A	176	178	parallel
Strand 8	A	208	210	parallel
Strand 9	A	229	231	parallel
Strand 10	A	253	255	parallel
Strand 11	A	294	296	parallel
Strand 12	A	318	320	parallel
Strand 13	A	344	346	parallel
Strand 14	A	374	376	parallel
Strand 15	A	401	403	parallel
Strand 16	A	425	427	parallel
Strand 17	A	497	499	parallel
Strand 18	A	521	523	parallel
Strand 19	A	546	548	parallel
Strand 20	A	570	572	parallel
Strand 21	A	600	602	parallel
Strand 22	A	623	625	parallel
Strand 23	A	654	656	parallel
Strand 24	A	679	680	parallel

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There are 2 strands in AA2 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	162	163	first strand
Strand 2	A	194	195	parallel

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There are 3 strands in AA3 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	357	359	first strand
Strand 2	A	382	385	parallel
Strand 3	A	411	412	parallel

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There are 2 strands in AA4 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	530	531	first strand
Strand 2	A	553	554	parallel

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There are 3 strands in AA5 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	727	729	first strand
Strand 2	A	751	753	parallel
Strand 3	A	777	779	parallel

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There are 24 strands in AA6 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	37	41	first strand
Strand 2	B	46	50	anti-parallel
Strand 3	B	69	71	parallel
Strand 4	B	93	95	parallel
Strand 5	B	131	133	parallel
Strand 6	B	152	154	parallel
Strand 7	B	176	178	parallel
Strand 8	B	208	210	parallel
Strand 9	B	229	231	parallel
Strand 10	B	253	255	parallel
Strand 11	B	294	296	parallel
Strand 12	B	318	320	parallel
Strand 13	B	344	346	parallel
Strand 14	B	374	376	parallel
Strand 15	B	401	403	parallel
Strand 16	B	425	427	parallel
Strand 17	B	497	499	parallel
Strand 18	B	521	523	parallel
Strand 19	B	546	548	parallel
Strand 20	B	570	572	parallel
Strand 21	B	600	602	parallel
Strand 22	B	623	625	parallel
Strand 23	B	654	656	parallel
Strand 24	B	679	680	parallel

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There are 2 strands in AA7 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	162	163	first strand
Strand 2	B	194	195	parallel

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There are 3 strands in AA8 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	357	359	first strand
Strand 2	B	382	385	parallel
Strand 3	B	411	412	parallel

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There are 2 strands in AA9 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	530	531	first strand
Strand 2	B	553	554	parallel

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There are 3 strands in AB1 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	727	729	first strand
Strand 2	B	751	753	parallel
Strand 3	B	777	779	parallel

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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il

Analysis of interatomic Contacts of Structural Units in PDB entry: 7CYN

Analysis of interatomic Contacts of Structural Units in PDB entry:
7CYN